#2873A0
Closest named color: Muted Blue (#3B719F). oklch(53.1% 0.101 239.4), rgb(40, 115, 160).
Aa
White text reads best on this color (5.18:1).
About this color
#2873A0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.101 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.014 away. White text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #2873A0 |
| RGB | rgb(40, 115, 160) |
| HSL | hsl(203, 60%, 39%) |
| OKLCH | oklch(53.1% 0.101 239.4) |
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 #2873A0 | 5.18:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #2873A0 | 4.05:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #2873A0 text on white | 5.18:1 | AA | Lc 75.4 | Fine for body text |
| #2873A0 text on black | 4.05:1 | AA large text | Lc -26.3 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A7C5DB
oklch(80.8% 0.045 239.9)
-
Step 400
400
#76A7CA
oklch(70.7% 0.073 240.2)
-
Step 500
500
#5091BC
oklch(63.1% 0.093 239.5)
-
Step 600
600 (this color)
#2873A0
oklch(53.1% 0.101 239.4)
-
Step 700
700
#226790
oklch(49.1% 0.094 239.3)
-
Step 800
800
#1F5475
oklch(42.7% 0.078 239.7)
-
Step 900
900
#1F465E
oklch(37.7% 0.06 238.3)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#2873A0 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) | #5E73A2 | 0.054 |
| Deuteranopia (no green cones) | #4E689F | 0.043 |
| Tritanopia (no blue cones) | #007E83 | 0.067 |
| Achromatopsia (no color) | #6D6D6D | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2873A0
#2873A0
oklch(53.1% 0.101 239.4)
- #965C28
#965C28
oklch(53% 0.101 59.5)
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 #2873A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.014
- Ocean Blue #03719C ΔE 0.018
- Flat Blue #3C73A8 ΔE 0.021
- Sea Blue #047495 ΔE 0.024
- Nice Blue #107AB0 ΔE 0.028
- Dull Blue #49759C ΔE 0.030
- Cerulean #457B9D ΔE 0.037
- Ocean #017B92 ΔE 0.039
Use #2873A0 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.