#2A678A
Closest named color: Denim (#3B638C). oklch(49% 0.084 237.2), rgb(42, 103, 138).
Aa
White text reads best on this color (6.16:1).
About this color
#2A678A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.084 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.019 away. White text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #2A678A |
| RGB | rgb(42, 103, 138) |
| HSL | hsl(202, 53%, 35%) |
| OKLCH | oklch(49% 0.084 237.2) |
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 #2A678A | 6.16:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #2A678A | 3.40:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #2A678A text on white | 6.16:1 | AA | Lc 80.5 | Fine for body text |
| #2A678A text on black | 3.40:1 | AA large text | Lc -21.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#7AA7C4
oklch(70.7% 0.064 237.1)
-
Step 500
500
#5691B6
oklch(63.1% 0.083 237.6)
-
Step 600
600
#397BA2
oklch(55.7% 0.09 237.4)
-
Step 700
700 (this color)
#2A678A
oklch(49% 0.084 237.2)
-
Step 800
800
#255470
oklch(42.6% 0.069 237.6)
-
Step 900
900
#23465B
oklch(37.8% 0.054 236.9)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#2A678A 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) | #57678C | 0.049 |
| Deuteranopia (no green cones) | #495D89 | 0.040 |
| Tritanopia (no blue cones) | #007073 | 0.057 |
| Achromatopsia (no color) | #616161 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A678A
#2A678A
oklch(49% 0.084 237.2)
- #84532D
#84532D
oklch(48.9% 0.084 56.9)
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 #2A678A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.019
- Peacock Blue #016795 ΔE 0.024
- Ocean Blue #03719C ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.039
- Sea Blue #047495 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.045
Use #2A678A 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.