#2A689F
Closest named color: Peacock Blue (#016795). oklch(50.4% 0.108 248.5), rgb(42, 104, 159).
Aa
White text reads best on this color (5.86:1).
About this color
#2A689F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.108 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.026 away. White text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.57:1 |
| White text | 5.86:1 |
Values
| HEX | #2A689F |
| RGB | rgb(42, 104, 159) |
| HSL | hsl(208, 58%, 39%) |
| OKLCH | oklch(50.4% 0.108 248.5) |
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 #2A689F | 5.86:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #2A689F | 3.57:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #2A689F text on white | 5.86:1 | AA | Lc 79.0 | Fine for body text |
| #2A689F text on black | 3.57:1 | AA large text | Lc -22.8 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A7C4E2
oklch(80.9% 0.053 249.4)
-
Step 400
400
#77A5D3
oklch(70.7% 0.084 249.1)
-
Step 500
500
#528EC7
oklch(63.1% 0.107 248.7)
-
Step 600
600
#3477B4
oklch(55.5% 0.117 248.9)
-
Step 700
700 (this color)
#2A689F
oklch(50.4% 0.108 248.5)
-
Step 800
800
#21527E
oklch(42.7% 0.09 248.7)
-
Step 900
900
#214465
oklch(37.7% 0.07 248.9)
-
Step 950
950
#14283B
oklch(27% 0.044 248.6)
#2A689F 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) | #4F6BA1 | 0.039 |
| Deuteranopia (no green cones) | #3E609E | 0.027 |
| Tritanopia (no blue cones) | #00757C | 0.080 |
| Achromatopsia (no color) | #656565 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A689F
#2A689F
oklch(50.4% 0.108 248.5)
- #8C5705
#8C5705
oklch(50.5% 0.108 68.7)
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 #2A689F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.026
- Ocean Blue #03719C ΔE 0.030
- Mid Blue #276AB3 ΔE 0.031
- Denim #3B638C ΔE 0.032
- Muted Blue #3B719F ΔE 0.032
- French Blue #436BAD ΔE 0.034
- Dusky Blue #475F94 ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.039
Use #2A689F 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.