#133F33
Closest named color: Evergreen (#05472A). oklch(33.3% 0.053 171.9), rgb(19, 63, 51).
Aa
White text reads best on this color (11.75:1).
About this color
#133F33 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.053 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.036 away. White text reads best on it, at 11.75:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.78:1 |
| White text | 11.75:1 |
Values
| HEX | #133F33 |
| RGB | rgb(19, 63, 51) |
| HSL | hsl(164, 54%, 16%) |
| OKLCH | oklch(33.3% 0.053 171.9) |
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 #133F33 | 11.75:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #133F33 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #133F33 text on white | 11.75:1 | AAA | Lc 96.8 | Preferred for body text |
| #133F33 text on black | 1.78:1 | 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 900.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED7
oklch(88.4% 0.022 171.7)
-
Step 300
300
#A8C9BE
oklch(80.8% 0.039 173.1)
-
Step 400
400
#77AE9C
oklch(70.7% 0.064 172)
-
Step 500
500
#519A84
oklch(63.2% 0.081 171.9)
-
Step 600
600
#31846D
oklch(55.6% 0.088 171.6)
-
Step 700
700
#22705B
oklch(49.2% 0.082 171.4)
-
Step 800
800
#1F5B4B
oklch(42.7% 0.067 172.3)
-
Step 900
900 (this color)
#133F33
oklch(33.3% 0.053 171.9)
-
Step 950
950
#142C24
oklch(27.1% 0.034 170)
#133F33 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) | #3D3B32 | 0.054 |
| Deuteranopia (no green cones) | #373634 | 0.053 |
| Tritanopia (no blue cones) | #00403B | 0.015 |
| Achromatopsia (no color) | #383838 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133F33
#133F33
oklch(33.3% 0.053 171.9)
- #4B2A39
#4B2A39
oklch(33.2% 0.054 351.7)
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 #133F33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.036
- Pakistan Green #283618 ΔE 0.044
- Midnight Green #073B4C ΔE 0.051
- Pine Green #0A481E ΔE 0.052
- Onyx #343A40 ΔE 0.053
- Dark Teal #014D4E ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.055
- Hunter Green #0B4008 ΔE 0.061
Use #133F33 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.