#4591AE
Closest named color: Dusty Blue (#5A86AD). oklch(62% 0.087 225.8), rgb(69, 145, 174).
Aa
Black text reads best on this color (5.91:1).
About this color
#4591AE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.087 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.035 away. Black text reads best on it, at 5.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.91:1 |
| White text | 3.55:1 |
Values
| HEX | #4591AE |
| RGB | rgb(69, 145, 174) |
| HSL | hsl(197, 43%, 48%) |
| OKLCH | oklch(62% 0.087 225.8) |
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 #4591AE | 3.55:1 | AA large text | Lc -68.4 | Content text, not long reading |
| Black text on #4591AE | 5.91:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #4591AE text on white | 3.55:1 | AA large text | Lc 62.9 | Content text, not long reading |
| #4591AE text on black | 5.91:1 | AA | Lc -38.8 | 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
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE5
oklch(88.6% 0.023 224.9)
-
Step 300
300
#A4C7D6
oklch(80.9% 0.043 225.7)
-
Step 400
400
#72AAC1
oklch(70.8% 0.067 225.7)
-
Step 500
500 (this color)
#4591AE
oklch(62% 0.087 225.8)
-
Step 600
600
#247E9D
oklch(55.5% 0.094 225.9)
-
Step 700
700
#146A86
oklch(49% 0.087 225.9)
-
Step 800
800
#16576D
oklch(42.8% 0.072 225.4)
-
Step 900
900
#1B4858
oklch(37.8% 0.056 224.7)
-
Step 950
950
#112A34
oklch(27% 0.036 226.6)
#4591AE 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) | #818EB0 | 0.066 |
| Deuteranopia (no green cones) | #7283AE | 0.058 |
| Tritanopia (no blue cones) | #009A9A | 0.055 |
| Achromatopsia (no color) | #888888 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4591AE
#4591AE
oklch(62% 0.087 225.8)
- #B27559
#B27559
oklch(62% 0.087 45.3)
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 #4591AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.035
- Blue NCS #118AB2 ΔE 0.038
- Off Blue #5684AE ΔE 0.039
- Faded Blue #658CBB ΔE 0.042
- Cool Blue #4984B8 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.047
- Teal Blue #01889F ΔE 0.049
- Blue Grey #758DA3 ΔE 0.050
Use #4591AE 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.