#2A5DAA
Closest named color: Mid Blue (#276AB3). oklch(48.5% 0.135 258.6), rgb(42, 93, 170).
Aa
White text reads best on this color (6.47:1).
About this color
#2A5DAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.135 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.037 away. White text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #2A5DAA |
| RGB | rgb(42, 93, 170) |
| HSL | hsl(216, 60%, 42%) |
| OKLCH | oklch(48.5% 0.135 258.6) |
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 #2A5DAA | 6.47:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #2A5DAA | 3.24:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #2A5DAA text on white | 6.47:1 | AA | Lc 81.7 | Fine for body text |
| #2A5DAA text on black | 3.24:1 | AA large text | Lc -20.1 | 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 700.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A7C2EB
oklch(80.8% 0.065 258.6)
-
Step 400
400
#78A2E2
oklch(70.7% 0.105 258.6)
-
Step 500
500
#5589D9
oklch(63% 0.134 258.7)
-
Step 600
600
#3971C7
oklch(55.5% 0.146 258.8)
-
Step 700
700 (this color)
#2A5DAA
oklch(48.5% 0.135 258.6)
-
Step 800
800
#254E8B
oklch(42.8% 0.111 258.3)
-
Step 900
900
#23416F
oklch(37.7% 0.087 258.7)
-
Step 950
950
#152641
oklch(26.9% 0.056 259.3)
#2A5DAA 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) | #3664AD | 0.024 |
| Deuteranopia (no green cones) | #1B59A8 | 0.017 |
| Tritanopia (no blue cones) | #006F7B | 0.105 |
| Achromatopsia (no color) | #5E5E5E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5DAA
#2A5DAA
oklch(48.5% 0.135 258.6)
- #7E5700
#7E5700
oklch(48.6% 0.101 78.5)
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 #2A5DAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.047
- French Blue #436BAD ΔE 0.049
- Peacock Blue #016795 ΔE 0.051
- Dusk Blue #26538D ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.054
- Denim #3B638C ΔE 0.057
Use #2A5DAA 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.