#133F47
Closest named color: Midnight Green (#073B4C). oklch(34.2% 0.049 211.8), rgb(19, 63, 71).
Aa
White text reads best on this color (11.47:1).
About this color
#133F47 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.049 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.020 away. White text reads best on it, at 11.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.82:1 |
| White text | 11.47:1 |
Values
| HEX | #133F47 |
| RGB | rgb(19, 63, 71) |
| HSL | hsl(189, 58%, 18%) |
| OKLCH | oklch(34.2% 0.049 211.8) |
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 #133F47 | 11.47:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #133F47 | 1.82:1 | Fails | Lc 7.7 | Not readable |
| #133F47 text on white | 11.47:1 | AAA | Lc 96.2 | Preferred for body text |
| #133F47 text on black | 1.82:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A6C7CE
oklch(80.8% 0.037 212)
-
Step 400
400
#75ABB6
oklch(70.7% 0.059 211.7)
-
Step 500
500
#4D96A4
oklch(63.2% 0.076 211.6)
-
Step 600
600
#2C808F
oklch(55.6% 0.082 211.7)
-
Step 700
700
#1D6C7A
oklch(49.1% 0.076 212.2)
-
Step 800
800
#1B5863
oklch(42.7% 0.063 211.9)
-
Step 900
900 (this color)
#133F47
oklch(34.2% 0.049 211.8)
-
Step 950
950
#132B2F
oklch(27.2% 0.031 209.5)
#133F47 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) | #393D47 | 0.046 |
| Deuteranopia (no green cones) | #313747 | 0.041 |
| Tritanopia (no blue cones) | #004241 | 0.020 |
| Achromatopsia (no color) | #393939 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133F47
#133F47
oklch(34.2% 0.049 211.8)
- #4F2F28
#4F2F28
oklch(34.3% 0.049 33)
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 #133F47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.022
- Charcoal #264653 ΔE 0.036
- Onyx #343A40 ΔE 0.039
- Dark Teal #014D4E ΔE 0.045
- Gunmetal #293241 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.050
Use #133F47 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.