#2D4FA0
Closest named color: Dusk Blue (#26538D). oklch(44.9% 0.137 264.4), rgb(45, 79, 160).
Aa
White text reads best on this color (7.67:1).
About this color
#2D4FA0 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.137 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.035 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #2D4FA0 |
| RGB | rgb(45, 79, 160) |
| HSL | hsl(222, 56%, 40%) |
| OKLCH | oklch(44.9% 0.137 264.4) |
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 #2D4FA0 | 7.67:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #2D4FA0 | 2.73:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #2D4FA0 text on white | 7.67:1 | AAA | Lc 86.3 | Fine for body text |
| #2D4FA0 text on black | 2.73:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A7C1F5
oklch(81% 0.079 264)
-
Step 400
400
#789EF1
oklch(70.6% 0.129 264.6)
-
Step 500
500
#5684EC
oklch(63.2% 0.164 264.3)
-
Step 600
600
#3C6BDA
oklch(55.7% 0.178 264.2)
-
Step 700
700
#2F58BD
oklch(49.1% 0.166 264.4)
-
Step 800
800 (this color)
#2D4FA0
oklch(44.9% 0.137 264.4)
-
Step 900
900
#243E7A
oklch(37.8% 0.107 264.3)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#2D4FA0 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) | #2059A3 | 0.027 |
| Deuteranopia (no green cones) | #004E9E | 0.028 |
| Tritanopia (no blue cones) | #006270 | 0.110 |
| Achromatopsia (no color) | #535353 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4FA0
#2D4FA0
oklch(44.9% 0.137 264.4)
- #6D5000
#6D5000
oklch(45% 0.092 84.4)
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 #2D4FA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.035
- Cobalt #1E488F ΔE 0.037
- Blueberry #464196 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.048
- Light Navy #155084 ΔE 0.052
- Twilight #4E518B ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.061
Use #2D4FA0 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.