#043741
Closest named color: Midnight Green (#073B4C). oklch(31.1% 0.052 214.9), rgb(4, 55, 65).
Aa
White text reads best on this color (12.89:1).
About this color
#043741 is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.052 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.022 away. White text reads best on it, at 12.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #043741 |
| RGB | rgb(4, 55, 65) |
| HSL | hsl(190, 88%, 14%) |
| OKLCH | oklch(31.1% 0.052 214.9) |
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 #043741 | 12.89:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #043741 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #043741 text on white | 12.89:1 | AAA | Lc 98.8 | Preferred for body text |
| #043741 text on black | 1.62:1 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DDEDF1
oklch(93.5% 0.018 214.4)
-
Step 200
200
#C0DFE7
oklch(88.4% 0.035 215)
-
Step 300
300
#92CBDA
oklch(80.8% 0.062 215.9)
-
Step 400
400
#49B0C7
oklch(70.6% 0.099 215)
-
Step 500
500
#009AB3
oklch(63.1% 0.111 214.6)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950 (this color)
#043741
oklch(31.1% 0.052 214.9)
#043741 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) | #303542 | 0.047 |
| Deuteranopia (no green cones) | #282F41 | 0.042 |
| Tritanopia (no blue cones) | #003B3A | 0.022 |
| Achromatopsia (no color) | #323232 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043741
#043741
oklch(31.1% 0.052 214.9)
- #47261E
#47261E
oklch(31% 0.052 34.5)
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 #043741, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.035
- Gunmetal #293241 ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.050
- Onyx #343A40 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.057
- Dark #1B2431 ΔE 0.065
Use #043741 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.