#28689B
Closest named color: Peacock Blue (#016795). oklch(50.1% 0.104 246.2), rgb(40, 104, 155).
Aa
White text reads best on this color (5.92:1).
About this color
#28689B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.104 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.021 away. White text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #28689B |
| RGB | rgb(40, 104, 155) |
| HSL | hsl(207, 59%, 38%) |
| OKLCH | oklch(50.1% 0.104 246.2) |
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 #28689B | 5.92:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #28689B | 3.54:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #28689B text on white | 5.92:1 | AA | Lc 79.3 | Fine for body text |
| #28689B text on black | 3.54:1 | AA large text | Lc -22.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C5E0
oklch(81% 0.05 245.6)
-
Step 400
400
#76A6D0
oklch(70.7% 0.08 245.7)
-
Step 500
500
#518FC4
oklch(63.1% 0.103 246.2)
-
Step 600
600
#3378B1
oklch(55.5% 0.113 246.7)
-
Step 700
700 (this color)
#28689B
oklch(50.1% 0.104 246.2)
-
Step 800
800
#20537B
oklch(42.8% 0.086 245.5)
-
Step 900
900
#204563
oklch(37.8% 0.067 245.4)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#28689B 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) | #516A9D | 0.043 |
| Deuteranopia (no green cones) | #415F9A | 0.032 |
| Tritanopia (no blue cones) | #00747A | 0.075 |
| Achromatopsia (no color) | #646464 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28689B
#28689B
oklch(50.1% 0.104 246.2)
- #8B5612
#8B5612
oklch(50.2% 0.104 66.3)
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 #28689B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.021
- Denim #3B638C ΔE 0.028
- Ocean Blue #03719C ΔE 0.028
- Muted Blue #3B719F ΔE 0.033
- Dusky Blue #475F94 ΔE 0.036
- Mid Blue #276AB3 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.038
- French Blue #436BAD ΔE 0.040
Use #28689B 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.