#2B63A5
Closest named color: Mid Blue (#276AB3). oklch(49.6% 0.121 254.4), rgb(43, 99, 165).
Aa
White text reads best on this color (6.12:1).
About this color
#2B63A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.121 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.027 away. White text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.43:1 |
| White text | 6.12:1 |
Values
| HEX | #2B63A5 |
| RGB | rgb(43, 99, 165) |
| HSL | hsl(212, 59%, 41%) |
| OKLCH | oklch(49.6% 0.121 254.4) |
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 #2B63A5 | 6.12:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #2B63A5 | 3.43:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #2B63A5 text on white | 6.12:1 | AA | Lc 80.2 | Fine for body text |
| #2B63A5 text on black | 3.43:1 | AA large text | Lc -21.6 | 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
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEF
oklch(88.6% 0.033 254)
-
Step 300
300
#A7C3E6
oklch(80.8% 0.058 254.2)
-
Step 400
400
#78A4DA
oklch(70.8% 0.093 254)
-
Step 500
500
#548CD0
oklch(63.2% 0.119 254.2)
-
Step 600
600
#3774BD
oklch(55.5% 0.13 254.5)
-
Step 700
700 (this color)
#2B63A5
oklch(49.6% 0.121 254.4)
-
Step 800
800
#245084
oklch(42.7% 0.099 254.3)
-
Step 900
900
#22436A
oklch(37.8% 0.078 253.9)
-
Step 950
950
#15273E
oklch(27% 0.049 255.2)
#2B63A5 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) | #4468A8 | 0.030 |
| Deuteranopia (no green cones) | #315DA4 | 0.017 |
| Tritanopia (no blue cones) | #00727C | 0.092 |
| Achromatopsia (no color) | #626262 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B63A5
#2B63A5
oklch(49.6% 0.121 254.4)
- #855800
#855800
oklch(49.7% 0.105 74.7)
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 #2B63A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.035
- French Blue #436BAD ΔE 0.036
- Peacock Blue #016795 ΔE 0.036
- Dusky Blue #475F94 ΔE 0.036
- Denim #3B638C ΔE 0.042
- Ocean Blue #03719C ΔE 0.047
- Muted Blue #3B719F ΔE 0.048
Use #2B63A5 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.