#2B759A
Closest named color: Sea Blue (#047495). oklch(53.3% 0.092 234.2), rgb(43, 117, 154).
Aa
White text reads best on this color (5.10:1).
About this color
#2B759A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.092 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.019 away. White text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.11:1 |
| White text | 5.10:1 |
Values
| HEX | #2B759A |
| RGB | rgb(43, 117, 154) |
| HSL | hsl(200, 56%, 39%) |
| OKLCH | oklch(53.3% 0.092 234.2) |
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 #2B759A | 5.10:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #2B759A | 4.11:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #2B759A text on white | 5.10:1 | AA | Lc 74.9 | Content text, not long reading |
| #2B759A text on black | 4.11:1 | AA large text | Lc -26.8 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#77A8C4
oklch(70.7% 0.066 234)
-
Step 500
500
#5292B5
oklch(63.1% 0.084 234.2)
-
Step 600
600 (this color)
#2B759A
oklch(53.3% 0.092 234.2)
-
Step 700
700
#24688A
oklch(49.1% 0.086 234.4)
-
Step 800
800
#205570
oklch(42.7% 0.071 234.2)
-
Step 900
900
#20465B
oklch(37.6% 0.056 235.2)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#2B759A 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) | #63749C | 0.058 |
| Deuteranopia (no green cones) | #546999 | 0.049 |
| Tritanopia (no blue cones) | #007F81 | 0.060 |
| Achromatopsia (no color) | #6E6E6E | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B759A
#2B759A
oklch(53.3% 0.092 234.2)
- #965D36
#965D36
oklch(53.4% 0.092 53.8)
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 #2B759A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.019
- Muted Blue #3B719F ΔE 0.020
- Ocean Blue #03719C ΔE 0.022
- Dull Blue #49759C ΔE 0.027
- Ocean #017B92 ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.029
- Cerulean #457B9D ΔE 0.030
- Nice Blue #107AB0 ΔE 0.034
Use #2B759A 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.