#2A529A
Closest named color: Dusk Blue (#26538D). oklch(45% 0.126 261.1), rgb(42, 82, 154).
Aa
White text reads best on this color (7.57:1).
About this color
#2A529A is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.126 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.023 away. White text reads best on it, at 7.57:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #2A529A |
| RGB | rgb(42, 82, 154) |
| HSL | hsl(219, 57%, 38%) |
| OKLCH | oklch(45% 0.126 261.1) |
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 #2A529A | 7.57:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #2A529A | 2.77:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #2A529A text on white | 7.57:1 | AAA | Lc 86.0 | Fine for body text |
| #2A529A text on black | 2.77:1 | Fails | Lc -16.1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F1
oklch(81% 0.073 260.7)
-
Step 400
400
#76A0EA
oklch(70.6% 0.118 261.2)
-
Step 500
500
#5387E4
oklch(63.2% 0.151 261.1)
-
Step 600
600
#386ED1
oklch(55.5% 0.164 261.3)
-
Step 700
700
#2A5CB5
oklch(49.1% 0.151 260.9)
-
Step 800
800 (this color)
#2A529A
oklch(45% 0.126 261.1)
-
Step 900
900
#224075
oklch(37.8% 0.098 260.9)
-
Step 950
950
#142645
oklch(27.1% 0.063 260.6)
#2A529A 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) | #2D599D | 0.021 |
| Deuteranopia (no green cones) | #154F99 | 0.019 |
| Tritanopia (no blue cones) | #00636E | 0.101 |
| Achromatopsia (no color) | #545454 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A529A
#2A529A
oklch(45% 0.126 261.1)
- #6F4F00
#6F4F00
oklch(45% 0.093 81.6)
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 #2A529A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.023
- Cobalt #1E488F ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.037
- Light Navy #155084 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.049
- Twilight #4E518B ΔE 0.049
- Blueberry #464196 ΔE 0.052
Use #2A529A 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.