#4F90AA
Closest named color: Dusty Blue (#5A86AD). oklch(62% 0.077 226.2), rgb(79, 144, 170).
Aa
Black text reads best on this color (5.90:1).
About this color
#4F90AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.077 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.032 away. Black text reads best on it, at 5.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.90:1 |
| White text | 3.55:1 |
Values
| HEX | #4F90AA |
| RGB | rgb(79, 144, 170) |
| HSL | hsl(197, 37%, 49%) |
| OKLCH | oklch(62% 0.077 226.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4F90AA | 3.55:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #4F90AA | 5.90:1 | AA | Lc 41.1 | Non-text elements, placeholder text |
| #4F90AA text on white | 3.55:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #4F90AA text on black | 5.90:1 | AA | Lc -38.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A8C6D4
oklch(80.9% 0.038 227.7)
-
Step 400
400
#78A9BE
oklch(70.8% 0.06 226.5)
-
Step 500
500 (this color)
#4F90AA
oklch(62% 0.077 226.2)
-
Step 600
600
#337D99
oklch(55.5% 0.084 226.4)
-
Step 700
700
#256983
oklch(49% 0.079 227.3)
-
Step 800
800
#21566A
oklch(42.7% 0.064 226.3)
-
Step 900
900
#214756
oklch(37.7% 0.05 226.3)
-
Step 950
950
#142A32
oklch(27.1% 0.032 223.6)
#4F90AA with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #828DAB | 0.059 |
| Deuteranopia (no green cones) | #7583AA | 0.053 |
| Tritanopia (no blue cones) | #0F9898 | 0.055 |
| Achromatopsia (no color) | #888888 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F90AA
#4F90AA
oklch(62% 0.077 226.2)
- #AD785E
#AD785E
oklch(62% 0.077 47)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4F90AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.032
- Off Blue #5684AE ΔE 0.037
- Faded Blue #658CBB ΔE 0.040
- Blue Grey #758DA3 ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.044
- Blue NCS #118AB2 ΔE 0.045
- Cool Blue #4984B8 ΔE 0.047
- Light Slate Gray #778899 ΔE 0.049
Use #4F90AA in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.