#257585
Closest named color: Deep Aqua (#08787F). oklch(52.2% 0.079 213.8), rgb(37, 117, 133).
Aa
White text reads best on this color (5.30:1).
About this color
#257585 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.079 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.019 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.96:1 |
| White text | 5.30:1 |
Values
| HEX | #257585 |
| RGB | rgb(37, 117, 133) |
| HSL | hsl(190, 56%, 33%) |
| OKLCH | oklch(52.2% 0.079 213.8) |
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 #257585 | 5.30:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #257585 | 3.96:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #257585 text on white | 5.30:1 | AA | Lc 76.1 | Fine for body text |
| #257585 text on black | 3.96:1 | AA large text | Lc -25.7 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A5C8D0
oklch(81% 0.039 213.1)
-
Step 400
400
#73ABB8
oklch(70.7% 0.061 213.9)
-
Step 500
500
#4B96A6
oklch(63.1% 0.078 213.4)
-
Step 600
600
#288091
oklch(55.6% 0.085 213.3)
-
Step 700
700 (this color)
#257585
oklch(52.2% 0.079 213.8)
-
Step 800
800
#185865
oklch(42.7% 0.066 214.3)
-
Step 900
900
#1C4952
oklch(37.8% 0.051 212.8)
-
Step 950
950
#122B30
oklch(27.1% 0.032 212.2)
#257585 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) | #697186 | 0.071 |
| Deuteranopia (no green cones) | #5C6785 | 0.065 |
| Tritanopia (no blue cones) | #007B7A | 0.032 |
| Achromatopsia (no color) | #6B6B6B | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257585
#257585
oklch(52.2% 0.079 213.8)
- #91584B
#91584B
oklch(52.1% 0.079 33.6)
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 #257585, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.019
- Ocean #017B92 ΔE 0.024
- Sea Blue #047495 ΔE 0.028
- Bluegreen #017A79 ΔE 0.031
- Deep Turquoise #017374 ΔE 0.032
- Dark Aquamarine #017371 ΔE 0.037
- Teal #008080 ΔE 0.038
- Metallic Blue #4F738E ΔE 0.042
Use #257585 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.