#2651B5
Closest named color: Blue Blue (#2242C7). oklch(46.6% 0.166 263.6), rgb(38, 81, 181).
Aa
White text reads best on this color (7.17:1).
About this color
#2651B5 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.166 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.046 away. White text reads best on it, at 7.17:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #2651B5 |
| RGB | rgb(38, 81, 181) |
| HSL | hsl(222, 65%, 43%) |
| OKLCH | oklch(46.6% 0.166 263.6) |
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 #2651B5 | 7.17:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #2651B5 | 2.92:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #2651B5 text on white | 7.17:1 | AAA | Lc 84.4 | Fine for body text |
| #2651B5 text on black | 2.92:1 | Fails | Lc -17.6 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF8
oklch(88.6% 0.045 263.1)
-
Step 300
300
#A6C1F5
oklch(80.9% 0.08 263.3)
-
Step 400
400
#779FF1
oklch(70.8% 0.129 263.7)
-
Step 500
500
#5484EC
oklch(63.1% 0.165 263.7)
-
Step 600
600
#3A6BDA
oklch(55.6% 0.179 263.7)
-
Step 700
700 (this color)
#2651B5
oklch(46.6% 0.166 263.6)
-
Step 800
800
#264999
oklch(42.7% 0.137 263.8)
-
Step 900
900
#233E7A
oklch(37.7% 0.107 263.8)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#2651B5 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) | #005EB8 | 0.034 |
| Deuteranopia (no green cones) | #0051B3 | 0.019 |
| Tritanopia (no blue cones) | #006A7B | 0.130 |
| Achromatopsia (no color) | #575757 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2651B5
#2651B5
oklch(46.6% 0.166 263.6)
- #735400
#735400
oklch(46.6% 0.096 83.8)
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 #2651B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.046
- Sapphire #2138AB ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.065
- Dusk Blue #26538D ΔE 0.066
- Cobalt #1E488F ΔE 0.066
- Blueberry #464196 ΔE 0.068
- Mid Blue #276AB3 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.070
Use #2651B5 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.