#00657D
Closest named color: Petrol (#005F6A). oklch(47% 0.086 221.6), rgb(0, 101, 125).
Aa
White text reads best on this color (6.65:1).
About this color
#00657D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 47%, its chroma 0.086 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.033 away. White text reads best on it, at 6.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #00657D |
| RGB | rgb(0, 101, 125) |
| HSL | hsl(192, 100%, 25%) |
| OKLCH | oklch(47% 0.086 221.6) |
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 #00657D | 6.65:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #00657D | 3.15:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #00657D text on white | 6.65:1 | AA | Lc 82.3 | Fine for body text |
| #00657D text on black | 3.15:1 | AA large text | Lc -19.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D4
oklch(80.8% 0.042 222.4)
-
Step 400
400
#70ABBE
oklch(70.8% 0.067 220.2)
-
Step 500
500
#4695AE
oklch(63% 0.086 221.5)
-
Step 600
600
#207F9A
oklch(55.6% 0.093 221.8)
-
Step 700
700 (this color)
#00657D
oklch(47% 0.086 221.6)
-
Step 800
800
#13576B
oklch(42.6% 0.072 222.6)
-
Step 900
900
#194857
oklch(37.7% 0.056 222.5)
-
Step 950
950
#102A33
oklch(26.9% 0.036 223.3)
#00657D 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) | #57627E | 0.070 |
| Deuteranopia (no green cones) | #48587D | 0.061 |
| Tritanopia (no blue cones) | #006C6D | 0.040 |
| Achromatopsia (no color) | #5C5C5C | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00657D
#00657D
oklch(47% 0.086 221.6)
- #834932
#834932
oklch(47% 0.087 42)
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 #00657D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.033
- Dark Aqua #05696B ΔE 0.036
- Peacock Blue #016795 ΔE 0.039
- Denim #3B638C ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.051
- Sea Blue #047495 ΔE 0.054
Use #00657D 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.