#2A4E6A
Closest named color: Dark Grey Blue (#29465B). oklch(41% 0.063 243.7), rgb(42, 78, 106).
Aa
White text reads best on this color (8.76:1).
About this color
#2A4E6A is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.063 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #2A4E6A |
| RGB | rgb(42, 78, 106) |
| HSL | hsl(206, 43%, 29%) |
| OKLCH | oklch(41% 0.063 243.7) |
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 #2A4E6A | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #2A4E6A | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #2A4E6A text on white | 8.76:1 | AAA | Lc 89.9 | Fine for body text |
| #2A4E6A text on black | 2.39:1 | Fails | Lc -12.4 | Not readable |
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 800.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D7
oklch(80.9% 0.037 243.1)
-
Step 400
400
#81A5C3
oklch(70.6% 0.059 243.9)
-
Step 500
500
#618FB4
oklch(63.2% 0.075 243.6)
-
Step 600
600
#4779A0
oklch(55.7% 0.082 243.5)
-
Step 700
700
#386589
oklch(49.1% 0.076 244.4)
-
Step 800
800 (this color)
#2A4E6A
oklch(41% 0.063 243.7)
-
Step 900
900
#2A455A
oklch(37.8% 0.049 243)
-
Step 950
950
#192835
oklch(27% 0.032 245.5)
#2A4E6A 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) | #424E6B | 0.030 |
| Deuteranopia (no green cones) | #394869 | 0.024 |
| Tritanopia (no blue cones) | #005558 | 0.051 |
| Achromatopsia (no color) | #4B4B4B | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4E6A
#2A4E6A
oklch(41% 0.063 243.7)
- #624324
#624324
oklch(41.1% 0.062 64.5)
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 #2A4E6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Charcoal #264653 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.043
- Light Navy #155084 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.047
- Deep Teal #00555A ΔE 0.048
- YInMn Blue #415A77 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.056
Use #2A4E6A 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.