#2651BB
Closest named color: Blue Blue (#2242C7). oklch(47.1% 0.174 264.1), rgb(38, 81, 187).
Aa
White text reads best on this color (7.05:1).
About this color
#2651BB is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.174 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.040 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #2651BB |
| RGB | rgb(38, 81, 187) |
| HSL | hsl(223, 66%, 44%) |
| OKLCH | oklch(47.1% 0.174 264.1) |
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 #2651BB | 7.05:1 | AAA | Lc -88.8 | Fine for body text |
| Black text on #2651BB | 2.97:1 | Fails | Lc 20.2 | Dividers and decoration only |
| #2651BB text on white | 7.05:1 | AAA | Lc 83.9 | Fine for body text |
| #2651BB text on black | 2.97:1 | Fails | Lc -18.1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CADAF9
oklch(88.6% 0.046 263.7)
-
Step 300
300
#A5C1F8
oklch(81% 0.084 263.6)
-
Step 400
400
#759EF5
oklch(70.7% 0.136 264.1)
-
Step 500
500
#5383F0
oklch(63.1% 0.172 264.2)
-
Step 600
600
#386ADF
oklch(55.7% 0.187 263.9)
-
Step 700
700 (this color)
#2651BB
oklch(47.1% 0.174 264.1)
-
Step 800
800
#24489D
oklch(42.7% 0.145 264)
-
Step 900
900
#223D7C
oklch(37.6% 0.112 264.3)
-
Step 950
950
#142449
oklch(26.9% 0.072 264.5)
#2651BB 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) | #0060BF | 0.038 |
| Deuteranopia (no green cones) | #0052B9 | 0.018 |
| Tritanopia (no blue cones) | #006B7E | 0.134 |
| Achromatopsia (no color) | #595959 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2651BB
#2651BB
oklch(47.1% 0.174 264.1)
- #755500
#755500
oklch(47.1% 0.097 83.2)
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 #2651BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.040
- Majorelle Blue #3F37C9 ΔE 0.060
- Sapphire #2138AB ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
- Warm Blue #4B57DB ΔE 0.068
- Mid Blue #276AB3 ΔE 0.070
- Blueberry #464196 ΔE 0.075
- Cobalt #1E488F ΔE 0.075
Use #2651BB 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.