#257293
Closest named color: Sea Blue (#047495). oklch(52.1% 0.089 230.7), rgb(37, 114, 147).
Aa
White text reads best on this color (5.37:1).
About this color
#257293 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.089 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.012 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #257293 |
| RGB | rgb(37, 114, 147) |
| HSL | hsl(198, 60%, 36%) |
| OKLCH | oklch(52.1% 0.089 230.7) |
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 #257293 | 5.37:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #257293 | 3.90:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #257293 text on white | 5.37:1 | AA | Lc 76.5 | Fine for body text |
| #257293 text on black | 3.90:1 | AA large text | Lc -25.3 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A5C6D8
oklch(80.8% 0.044 231.9)
-
Step 400
400
#73A9C4
oklch(70.7% 0.069 230.7)
-
Step 500
500
#4B93B5
oklch(63.1% 0.088 230.9)
-
Step 600
600
#287DA1
oklch(55.6% 0.096 230.6)
-
Step 700
700 (this color)
#257293
oklch(52.1% 0.089 230.7)
-
Step 800
800
#195670
oklch(42.7% 0.074 230.7)
-
Step 900
900
#1C475B
oklch(37.7% 0.058 231.3)
-
Step 950
950
#122A35
oklch(27.1% 0.036 229.8)
#257293 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) | #617095 | 0.061 |
| Deuteranopia (no green cones) | #526693 | 0.052 |
| Tritanopia (no blue cones) | #007B7D | 0.053 |
| Achromatopsia (no color) | #6A6A6A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257293
#257293
oklch(52.1% 0.089 230.7)
- #925937
#925937
oklch(52.1% 0.089 50.6)
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 #257293, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.012
- Ocean Blue #03719C ΔE 0.019
- Muted Blue #3B719F ΔE 0.028
- Ocean #017B92 ΔE 0.029
- Dull Blue #49759C ΔE 0.037
- Metallic Blue #4F738E ΔE 0.038
- Peacock Blue #016795 ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.040
Use #257293 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.