#133A34
Closest named color: Midnight Green (#073B4C). oklch(31.9% 0.045 181.6), rgb(19, 58, 52).
Aa
White text reads best on this color (12.48:1).
About this color
#133A34 is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.045 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.042 away. White text reads best on it, at 12.48:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #133A34 |
| RGB | rgb(19, 58, 52) |
| HSL | hsl(171, 51%, 15%) |
| OKLCH | oklch(31.9% 0.045 181.6) |
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 #133A34 | 12.48:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #133A34 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #133A34 text on white | 12.48:1 | AAA | Lc 98.2 | Preferred for body text |
| #133A34 text on black | 1.68:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#DFEDEA
oklch(93.5% 0.015 181.8)
-
Step 200
200
#C5E0DA
oklch(88.5% 0.03 180.7)
-
Step 300
300
#9BCCC3
oklch(80.8% 0.053 182.4)
-
Step 400
400
#5DB2A4
oklch(70.6% 0.086 181.8)
-
Step 500
500
#169F8E
oklch(63.2% 0.11 181.4)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950 (this color)
#133A34
oklch(31.9% 0.045 181.6)
#133A34 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) | #373634 | 0.048 |
| Deuteranopia (no green cones) | #313235 | 0.045 |
| Tritanopia (no blue cones) | #003B38 | 0.012 |
| Achromatopsia (no color) | #343434 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133A34
#133A34
oklch(31.9% 0.045 181.6)
- #462931
#462931
oklch(32% 0.045 2)
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 #133A34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.042
- Pakistan Green #283618 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Onyx #343A40 ΔE 0.049
- Evergreen #05472A ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.065
Use #133A34 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.