#21607A
Closest named color: Petrol (#005F6A). oklch(46.1% 0.076 229.2), rgb(33, 96, 122).
Aa
White text reads best on this color (6.95:1).
About this color
#21607A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.076 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.032 away. White text reads best on it, at 6.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.01:1 |
| White text | 6.95:1 |
Values
| HEX | #21607A |
| RGB | rgb(33, 96, 122) |
| HSL | hsl(198, 57%, 30%) |
| OKLCH | oklch(46.1% 0.076 229.2) |
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 #21607A | 6.95:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #21607A | 3.01:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #21607A text on white | 6.95:1 | AA | Lc 83.8 | Fine for body text |
| #21607A text on black | 3.01:1 | AA large text | Lc -18.1 | 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
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#7AA8BE
oklch(70.7% 0.059 229.1)
-
Step 500
500
#5692AE
oklch(63% 0.075 229.7)
-
Step 600
600
#397C99
oklch(55.5% 0.081 229.1)
-
Step 700
700 (this color)
#21607A
oklch(46.1% 0.076 229.2)
-
Step 800
800
#25556A
oklch(42.6% 0.062 229.4)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950
#162933
oklch(26.9% 0.031 232.5)
#21607A 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) | #535E7B | 0.054 |
| Deuteranopia (no green cones) | #46567A | 0.045 |
| Tritanopia (no blue cones) | #006769 | 0.043 |
| Achromatopsia (no color) | #595959 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21607A
#21607A
oklch(46.1% 0.076 229.2)
- #7A4B31
#7A4B31
oklch(46.1% 0.075 49.1)
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 #21607A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.032
- YInMn Blue #415A77 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.035
- Denim #3B638C ΔE 0.040
- Peacock Blue #016795 ΔE 0.044
- Dark Aqua #05696B ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.053
Use #21607A 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.