#2B779B
Closest named color: Sea Blue (#047495). oklch(53.9% 0.092 232.9), rgb(43, 119, 155).
Aa
White text reads best on this color (4.98:1).
About this color
#2B779B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.092 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.022 away. White text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #2B779B |
| RGB | rgb(43, 119, 155) |
| HSL | hsl(199, 57%, 39%) |
| OKLCH | oklch(53.9% 0.092 232.9) |
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 #2B779B | 4.98:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #2B779B | 4.21:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #2B779B text on white | 4.98:1 | AA | Lc 74.2 | Content text, not long reading |
| #2B779B text on black | 4.21:1 | AA large text | Lc -27.5 | 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
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#76A8C3
oklch(70.6% 0.066 232.5)
-
Step 500
500
#5092B4
oklch(63% 0.085 232.7)
-
Step 600
600 (this color)
#2B779B
oklch(53.9% 0.092 232.9)
-
Step 700
700
#226889
oklch(48.9% 0.086 233.1)
-
Step 800
800
#1F556F
oklch(42.6% 0.071 232.9)
-
Step 900
900
#20475A
oklch(37.8% 0.055 231.9)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#2B779B 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) | #65769D | 0.060 |
| Deuteranopia (no green cones) | #566B9A | 0.050 |
| Tritanopia (no blue cones) | #008183 | 0.058 |
| Achromatopsia (no color) | #707070 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B779B
#2B779B
oklch(53.9% 0.092 232.9)
- #985E38
#985E38
oklch(53.8% 0.092 52.8)
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 #2B779B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.022
- Muted Blue #3B719F ΔE 0.023
- Dull Blue #49759C ΔE 0.026
- Cerulean #457B9D ΔE 0.026
- Ocean #017B92 ΔE 0.026
- Ocean Blue #03719C ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.030
- Nice Blue #107AB0 ΔE 0.033
Use #2B779B 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.