#5990BD
Closest named color: Faded Blue (#658CBB). oklch(63.4% 0.09 244.6), rgb(89, 144, 189).
Aa
Black text reads best on this color (6.14:1).
About this color
#5990BD is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.090 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.015 away. Black text reads best on it, at 6.14:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.14:1 |
| White text | 3.41:1 |
Values
| HEX | #5990BD |
| RGB | rgb(89, 144, 189) |
| HSL | hsl(207, 43%, 55%) |
| OKLCH | oklch(63.4% 0.09 244.6) |
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 #5990BD | 3.41:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #5990BD | 6.14:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #5990BD text on white | 3.41:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #5990BD text on black | 6.14:1 | AA | Lc -40.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7BA6CA
oklch(70.7% 0.07 244.3)
-
Step 500
500 (this color)
#5990BD
oklch(63.4% 0.09 244.6)
-
Step 600
600
#3C79A8
oklch(55.6% 0.097 244.1)
-
Step 700
700
#2E6590
oklch(49% 0.09 244.8)
-
Step 800
800
#275375
oklch(42.7% 0.075 244.2)
-
Step 900
900
#25455F
oklch(37.8% 0.059 244.8)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#5990BD 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) | #7D91BF | 0.043 |
| Deuteranopia (no green cones) | #7086BC | 0.035 |
| Tritanopia (no blue cones) | #1E9B9F | 0.076 |
| Achromatopsia (no color) | #8B8B8B | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5990BD
#5990BD
oklch(63.4% 0.09 244.6)
- #B07E4E
#B07E4E
oklch(63.3% 0.089 63.9)
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 #5990BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.015
- Dusty Blue #5A86AD ΔE 0.032
- Off Blue #5684AE ΔE 0.037
- Cool Blue #4984B8 ΔE 0.040
- Silver Lake Blue #778DA9 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.047
- Blue NCS #118AB2 ΔE 0.055
Use #5990BD 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.